-pyaspects-URL := http://build.planet-lab.org/third-party/pyaspects-0.2.tar.gz
-pyaspects-SHA1SUM := 0b577003a4e24d8273bf477e360442ac6a5ea27a
-pyaspects := $(notdir $(pyaspects-URL))
+pyaspects-URL1 := http://build.planet-lab.org/third-party/pyaspects-0.4.1.tar.gz
+pyaspects-URL2 := http://mirror.onelab.eu/third-party/pyaspects-0.4.1.tar.gz
+pyaspects-SHA1SUM := 6b9f0b5711b98ed2a6c6a85713325158de96193a
+pyaspects := $(notdir $(pyaspects-URL1))